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K. INCOME TAXES - RECONCILIATION (Details) - USD ($)
$ in Thousands
3 Months Ended 12 Months Ended
Dec. 31, 2016
Sep. 30, 2016
Jun. 30, 2016
Mar. 31, 2016
Dec. 31, 2015
Sep. 30, 2015
Jun. 30, 2015
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Income Tax Disclosure [Abstract]                    
Expected (benefit) taxes               $ 7,351 $ 3,797 $ 1,524
Non-deductible/non-taxable items               565 157 138
Foreign rate differences               (654) (1,267) 295
Foreign permanent differences               (1,005)    
Increase (decrease) in valuation allowance               (13,063) 2,052 (1,729)
Section 382 limitation               (3,065) (4,382)  
Changes in tax laws or rates               (361)    
Other, net               1 18 (29)
Tax (benefit) expense $ 1,241 $ (11,332) $ 52 $ (192) $ (166) $ 406 $ 135 $ (10,231) $ 375 $ 199